Math Practice 101
Homework Explained - Math Practice 101

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Grade 5 HMH Go Math - NEW
Chapter 1: Place Value, Multiplication, and Expressions; Powers of 10 and Exponents


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UNLOCK the Problem

 

  • Question 16 (request help)

    Lake Superior is the largest of the Great Lakes. It covers a surface area of about 30,000 square miles. How can you show the estimated area of Lake Superior as a whole number multiplied by a power of ten?

    a. What are you asked to find?
    • A. \(3 \times 10^ 2 \text{ sq mi} \)
    • B. \(3 \times 10^ 3\text{ sq mi}\)
    • C. \(3 \times 10^ 4 \text{ sq mi}\)
    • D. \(3 \times 10^ 5 \text{ sq mi}\)
  • Question 16 (request help)

    b. How can you use a pattern to find the answer?
  • Type below:
  • Question 16 (request help)

    c. Write a pattern using the whole number 3 and powers of ten.

     \(\begin {align}
    & 3 \times 10^1 = 3 \times 10&=\ \ \ \ \ \ \  \\
    & 3 \times 10^ 2 =\ \ \ \ \ \ \ &= \ \ \ \ \ \ \ \  \\
    & 3 \times 10^ 3 = \ \ \ \ \ \ \ \ \ \ &= \ \ \ \ \ \ \ \  \\
    & 3 \times 10^ 4 = \ \ \ \ \ \ \ \ \ \ \ &= \ \ \ \ \ \ \ \  \\
    \end{align}\)
  • Type below:
  • Question 16 (request help)

    d. Fill in the correct answer choice above.

     
  • Type below:
  • Question 17 (request help)

    The Earth’s diameter through the equator is about 8,000 miles. What is the Earth’s estimated diameter written as a whole number multiplied by a power of ten?
    • A. \(8 \times 10 ^1 \text{ miles }\)
    • B. \(8 \times 10^ 2 \text{ miles }\)
    • C. \(8 \times 10^ 3 \text{ miles}\)
    • D. \(8 \times 10^ 4 \text{ miles}\)
  • Question 18 (request help)

    The Earth’s circumference around the equator is about \(25\times 10^ 3 \)miles. What is the Earth’s estimated circumference written as a whole number?
    • A. 250,000 miles
    • B. 25,000 miles
    • C. 2,500 miles
    • D. 250 miles

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